purpose: study the effect of increasing the concentration of an ionic compound on conductivity & investigate the effect of adding other solutions with the same concentration, but different numbers of ions in their formulas.
graph showing alcl3 had the largest slope value. Graph showing nacl had the smallest slope value. The moles of solute accounts for the difference in the slope of the three plots. more moles equals a greater slope.
Ranking metal reactivity
Adding lead II nitrate to plastic tray
adding copper, iron, zinc, aluminum into liquid solution
pouring copper sulfite solution into tray
adding same metals as above into liquid solution
pouring zinc chloride into tray
add metals above into solution
final results Determination of a hydrate:
1) measuring clean, dry crucible, recording mass
2) we measured and recorded the mass of the crucible and compound
3) We heated the crucible for around ten minutes
4) we turned off burner and allowed the sample to cool
the waiting process
5) we recorded the mass of the crucible and contents inside
6) we repeated the heating of the crucible for 5 more minutes
7) we then allowed the crucible to cool
8) finally, we re-measured it's mass
the graph shows that as height increases, shoe size does as well. Knowing this, we can come to the conclusion that the criminal is Penelope. She had the smallest feet, which means she was most likely the shortest as well, making her the suspect.
The effect of concentration on solubility
purpose: study the effect of increasing the concentration of an ionic compound on conductivity & investigate the effect of adding other solutions with the same concentration, but different numbers of ions in their formulas.Data:
Best fit line-
Nacl: y=65.0x+0.28AlCl3: y=125.5x+113.9
CaCl2: y=117.8x+21.2
Conclusion:
graph showing alcl3 had the largest slope value. Graph showing nacl had the smallest slope value. The moles of solute accounts for the difference in the slope of the three plots. more moles equals a greater slope.Ranking metal reactivity
Adding lead II nitrate to plastic tray
adding copper, iron, zinc, aluminum into liquid solution
pouring copper sulfite solution into tray
adding same metals as above into liquid solution
pouring zinc chloride into tray
add metals above into solution
final results
Determination of a hydrate:
1) measuring clean, dry crucible, recording mass
2) we measured and recorded the mass of the crucible and compound
3) We heated the crucible for around ten minutes
4) we turned off burner and allowed the sample to cool
the waiting process
5) we recorded the mass of the crucible and contents inside
6) we repeated the heating of the crucible for 5 more minutes
7) we then allowed the crucible to cool
8) finally, we re-measured it's mass